4 p. Selected pages of the Report of the Chief of Engineers for 1875. Includes reports on the improvement of rivers in Oregon and Washington territory.
4 p. Selected pages of the Report of the Chief of Engineers for 1877. Included are annual reports detailing improvements of rivers in Oregon and Washington territory.
6 p. Selected pages of the Report of the Chief of Engineers for 1879. Included are annual reports upon works of river improvements for the Willamette and Columbia rivers.